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author | MarcoFalke <falke.marco@gmail.com> | 2021-09-06 10:31:05 +0200 |
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committer | MarcoFalke <falke.marco@gmail.com> | 2021-09-06 10:31:12 +0200 |
commit | fa92777448239f52fb04579304095bd34c4d2bf8 (patch) | |
tree | d36320767073e7639a0119fe5544bc1c97008d60 /src/i2p.cpp | |
parent | e567dd53d192f399a960704558957ca01c460043 (diff) | |
parent | 7e698732836121912f179b7c743a72dd6fdffa72 (diff) | |
download | bitcoin-fa92777448239f52fb04579304095bd34c4d2bf8.tar.xz |
Merge bitcoin/bitcoin#22736: log, sync: change lock contention from preprocessor directive to log category
7e698732836121912f179b7c743a72dd6fdffa72 sync: remove DEBUG_LOCKCONTENTION preprocessor directives (Jon Atack)
9b08006bc502e67956d6ab518388fad6397cac8d log, sync: improve lock contention logging and add time duration (Jon Atack)
3f4c6b87f1098436693c4990f2082515ec0ece26 log, timer: add timing macro in usec LOG_TIME_MICROS_WITH_CATEGORY (Jon Atack)
b7a17444e0746c562ae97b26eba431577947b06a log, sync: add LOCK logging category, apply it to lock contention (Jon Atack)
Pull request description:
To enable lock contention logging, `DEBUG_LOCKCONTENTION` has to be defined at compilation. Once built, the logging is not limited to a category and is high frequency, verbose and in all-caps. With these factors combined, it seems likely to be rarely used.
This patch:
- adds a `lock` logging category
- adds a timing macro in microseconds, `LOG_TIME_MICROS_WITH_CATEGORY`
- updates `BCLog::LogMsg()` to omit irrelevant decimals for microseconds and skip unneeded code and math
- improves the lock contention logging, drops the all-caps, and displays the duration in microseconds
- removes the conditional compilation directives
- allows lock contentions to be logged on startup with `-debug=lock` or at run time with `bitcoin-cli logging '["lock"]'`
```
$ bitcoind -signet -debug=lock
2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1920 started
2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1920 completed (4μs)
2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1302 started
2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1302 completed (4μs)
2021-09-01T12:40:02Z LockContention: cs_vNodes, net.cpp:2242 started
2021-09-01T12:40:02Z LockContention: cs_vNodes, net.cpp:2242 completed (20μs)
2021-09-01T12:43:04Z LockContention: ::cs_main, validation.cpp:4980 started
2021-09-01T12:43:04Z LockContention: ::cs_main, validation.cpp:4980 completed (3μs)
$ bitcoin-cli -signet logging
"lock": true,
$ bitcoin-cli -signet logging [] '["lock"]'
"lock": false,
$ bitcoin-cli -signet logging '["lock"]'
"lock": true,
```
I've tested this with Clang 13 and GCC 10.2.1, on Debian, with and without `--enable-debug`.
ACKs for top commit:
hebasto:
re-ACK 7e698732836121912f179b7c743a72dd6fdffa72, added a contention duration to the log message since my [previous](https://github.com/bitcoin/bitcoin/pull/22736#pullrequestreview-743764606) review.
theStack:
re-ACK 7e698732836121912f179b7c743a72dd6fdffa72 🔏 ⏲️
Tree-SHA512: c4b5eb88d3a2c051acaa842b3055ce30efde1f114f61da6e55fcaa27476c1c33a60bc419f7f5ccda532e1bdbe70815222ec2b2b6d9226f29c8e94e598aacfee7
Diffstat (limited to 'src/i2p.cpp')
0 files changed, 0 insertions, 0 deletions